Placing a filter on the （） of an oily water separator will "polish" the discharge but overloading must be avoided.

The resistance to the movement of the globule in oily water mixture depends on its size and the （） of the fluid.

A.pressure
B.velocity
C.gravity
D.viscosity

点击查看答案&解析

The principle of separation by which all commercially available oily water separators function is （） differential between oil and water.

A.the temperature
B.the viscosity
C.the gravity
D.the size

点击查看答案&解析